Set the user fx.params vec4 fed to this layer's custom shader (createSprite2DCustomShader)
each frame. No visual effect unless the layer was created with a customShader. Read in WGSL
as fx.params. Mutates in place; the renderer re-uploads the small FX UBO next frame.
Set the user
fx.paramsvec4 fed to this layer's custom shader (createSprite2DCustomShader) each frame. No visual effect unless the layer was created with acustomShader. Read in WGSL asfx.params. Mutates in place; the renderer re-uploads the small FX UBO next frame.